Information processing terminal

ABSTRACT

An information processing terminal includes a camera serving as an image capture unit for capturing an image of a subject; a body part having a front surface which is a predetermined surface on which a display unit for displaying a captured image including the subject captured by the image capture unit is disposed; and a coupling part that directly or indirectly couples the image capture unit relatively rotatably to the body part via a plurality of rotation axes including a pivot axis that is a first rotation axis for changing an angle formed by an optical axis direction of the image capture unit and the normal direction to the display unit, and a pivot axis that is a second rotation axis in a direction different from the first rotation axis.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a Continuation of co-pending Application No.17/228,503, filed on Apr. 12, 2021, which is a Division of 16/911,337filed on Jun. 24, 2020,which is a Divisional of U.S. Pat. ApplicationSerial No. 16/327,971 filed Apr. 17, 2019, which is the U.S. NationalStage of International Application No. PCT/JP2017/031277 filed Aug. 30,2017, which claims benefit of priority to Japanese Patent ApplicationNo. 2016-168212 filed Aug. 30, 2016, the entire content of which isincorporated herein by reference.

TECHNICAL FIELD

The present invention relates to an information processing terminal.

BACKGROUND ART

Heretofore, it has become common for a camera-equipped mobile terminalsuch as a smartphone or the like to be separately equipped with both arear camera (a camera for photographing other people), which is directedto a side of the mobile terminal at which a rear surface of a terminaldisplay unit is provided, and a front camera (a camera for selfphotography), which is directed to a side of the mobile terminal atwhich a display surface is provided. If two high-performance cameras areemployed in this kind of terminal, the terminal is higher in price andthe cameras and lenses are larger, which is not preferable in regard todesign. In addition, photographing other people is usually the main useof the cameras. Accordingly, the front camera is used as a sub camera,and a small, low-cost, low-performance camera is employed as the frontcamera.

However, there is demand for performing self photography with ahigh-performance camera while viewing an image that will actually becaptured by the camera on a display unit (below referred to as “thecamera viewpoint image”). Accordingly, there are cameras that can beused in both an other-people photography mode and a self photographymode. For example, Patent Document 1 discloses a technology in which animage sensor unit is rotated by a moving mechanism in accordance withselection of a photography mode, and a filter and lens to be used areautomatically switched in accordance with the rotation.

Patent Document 1: Japanese Unexamined Patent Application, PublicationNo. 2008-131555

DISCLOSURE OF THE INVENTION Problems to Be Solved by the Invention

However, in conventional technologies such as Patent Document 1, imagingdirections are very limited. Therefore, in functional terms disregardingthe issue of cost, similarly to terminals equipped with two or threehigh-performance cameras, the postures of users at times of imagecapture are limited.

The present invention has been made in consideration of this situation;an object of the present invention is to provide a mobile informationterminal that allows a high-performance camera to be directed in anyarbitrary direction relative to a terminal body and that allowsphotography to be performed in free positions while allowing viewing ofa camera viewpoint image.

Means for Solving the Problems

In order to achieve the object described above, an aspect of aninformation processing terminal of the present invention includes:

-   an image capture unit that captures an image of a subject;-   a body unit, at a predetermined surface of which a display unit is    disposed, the display unit displaying a captured image captured by    the image capture unit that includes the subject; and-   a coupling unit that directly or indirectly couples the image    capture unit relatively rotatably to the body unit via a plurality    of rotation axes, the plurality of rotation axes including a first    rotation axis for changing an angle between an optical axis    direction of the image capture unit and a normal direction of the    display unit, and a second rotation axis in a direction different    from a direction of the first rotation axis.

The coupling unit may include at least one movable part smaller involume than the body unit, the image capture unit may be disposed at apredetermined surface of one of the at least one movable part, and anangle between the direction of the first rotation axis and the directionof the second rotation axis may be substantially 90°.

Effects of the Invention

According to the present invention, a mobile information terminal may beprovided that allows photography in free positions while allowingviewing of a camera viewpoint image.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A, FIG. 1B and FIG. 1C are views depicting exterior structures ofan embodiment of an information processing terminal according to thepresent invention.

FIG. 2A, FIG. 2B and FIG. 2C are views depicting exterior structures ofthe information processing terminal in FIG. 1A to FIG. 1C.

FIG. 3A, FIG. 3B and FIG. 3C are views depicting states in which acoupling unit of the information processing terminal in FIG. 1A to FIG.1C is rotated.

FIG. 4A, FIG. 4B and FIG. 4C are views depicting states in which a standof the information processing terminal in FIG. 1A to FIG. 1C is rotated.

FIG. 5A and FIG. 5B are views depicting a state in which the informationprocessing terminal in FIG. 1A to FIG. 1C is used standing on a table.

FIG. 6A, FIG. 6B and FIG. 6C are views depicting exterior structures ofan embodiment of the information processing terminal according to thepresent invention, which embodiment is different from FIG. 1A to FIG.1C, in which a coupling unit is rotated.

FIG. 7 is a view depicting a state in which the information processingterminal in FIG. 6A to FIG. 6C is used standing on a table.

FIG. 8 is a view depicting a state of use, on a table, of an embodimentof the information processing terminal according to the presentinvention, which embodiment is different from FIG. 1A to FIG. 1C andFIG. 6A to FIG. 6C.

FIG. 9A and FIG. 9B are views depicting a state which the informationprocessing terminal in FIG. 1A to FIG. 1C is used standing on a table.

FIG. 10 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is used to perform time-lapsephotography.

FIG. 11A and FIG. 11B are views depicting examples of angles throughwhich a camera of the information processing terminal in FIG. 1A to FIG.1C may be rotated.

FIG. 12A, FIG. 12B and FIG. 12C are views depicting a procedure forusing the information processing terminal in FIG. 1A to FIG. 1C tocapture an image in which only a background is erased.

FIG. 13D, FIG. 13E and FIG. 13F are views depicting a procedure forusing the information processing terminal in FIG. 1A to FIG. 1C tocapture an image in which a background is blurred.

FIG. 14A and FIG. 14B are views depicting a state in which an image forcomparison with a previous photograph is captured using the informationprocessing terminal in FIG. 1A to FIG. 1C.

FIG. 15 is a view depicting a state in which a laser pointer is used tooperate the information processing terminal in FIG. 1A to FIG. 1C.

FIG. 16 is a view depicting a state in which a printed keyboard is usedto operate the information processing terminal in FIG. 1A to FIG. 1C.

FIG. 17 is a view depicting an example of the printed keyboard.

FIG. 18 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is operated by finger gestures.

FIG. 19A and FIG. 19B are views depicting a state in which theinformation processing terminal in FIG. 1A to FIG. 1C is used as a carnavigation system.

FIG. 20A and FIG. 20B are views depicting the state in which theinformation processing terminal in FIG. 1A to FIG. 1C is used as the carnavigation system.

FIG. 21A and FIG. 21B are views depicting a state in which theinformation processing terminal in FIG. 1A to FIG. 1C is used tophotograph an object of imaging at a suitable position.

FIG. 22A, FIG. 22B and FIG. 22C are views depicting a state in which theinformation processing terminal in FIG. 1A to FIG. 1C is used with thedirection of the camera being kept horizontal.

FIG. 23 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is used to convert printed matter to textdata.

FIG. 24 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is used to read products, productbarcodes or the like.

FIG. 25 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is used to read a receipt.

FIG. 26 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is used for imaging while a product isbeing rotated.

FIG. 27 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is used for imaging while a product isbeing rotated.

FIG. 28 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is used to capture a panorama image.

FIG. 29A and FIG. 29B are views depicting a state in which theinformation processing terminal in FIG. 1A to FIG. 1C is used to performa video chat.

FIG. 30 is a view depicting a state in which the information processingterminal in FIG. 1A to FIG. 1C is used to perform automatic photography.

FIG. 31 is a diagram showing a swivel cradle equipped with sensors.

FIG. 32A and FIG. 32B are views depicting exterior and interiorstructures of an embodiment of the information processing terminalaccording to the present invention, which structures are different fromFIG. 2A to FIG. 2C and the like.

FIG. 33 is a block diagram depicting structures for implementing controlof rotation in a case in which stepper motors in FIG. 32A and FIG. 32Bare employed.

PREFERRED MODE FOR CARRYING OUT THE INVENTION

In the following, embodiments of the present invention will be explainedwith reference to the drawings.

FIG. 1A, FIG. 1B and FIG. 1C are views depicting exterior structures ofan embodiment of an information processing terminal 1 according to thepresent invention. FIG. 1A is a front view of the information processingterminal 1. FIG. 1B is a top view of an information processing terminal1. FIG. 1C is a left side view of the information processing terminal 1.The information processing terminal 1 is equipped with at least displayfunctions and digital camera functions. The information processingterminal 1 is structured with a body unit 11 and a coupling unit 12,which are connected to be rotatable relative to one another.

The body unit 11 is formed in a short column shape with a planarrectangular shape. The body unit 11 is a first casing in which variouscircuit boards and the like are incorporated. A display unit 13constituted with a touch panel display or the like is disposed in apredetermined surface 11 a (below referred to as the front surface 11 a)of the body unit 11.

FIG. 2A, FIG. 2B and FIG. 2C are views depicting exterior structures ofthe information processing terminal in FIG. 1A to FIG. 1C. FIG. 2A is arear view of the information processing terminal 1. FIG. 2B is asectional view along line A-A in FIG. 2A. FIG. 2C is a sectional view inwhich FIG. 2A is seen from above.

A rear surface 11 b of the body unit 11 is a surface at the oppositeside of the body unit 11 from the front surface 11 a shown in FIG. 1A toFIG. 1C. The coupling unit 12 is formed in a substantially planarrectangular shape, and is rotatably disposed at one of the short sidesof the rear surface 11 b of the body unit 11. The coupling unit 12includes a camera base part 12-1 and a camera orientation part 12-2. Acircular camera 21 is disposed at a front face of the camera orientationpart 12-2 (the face thereof at the side viewed in FIG. 2A). That is, thecoupling unit 12 is a second casing in which the camera 21 isincorporated. The camera 21 is an image capture unit that capturesimages of subjects. Captured images including subjects imaged by thecamera 21 are displayed at the display unit 13. As shown in FIG. 2C, arecess width W is a width of a recess for the camera unit. A rotationradius r2 is the longest rotation radius from a pivot axis (center) of asecond hinge. Therefore, a relationship between the recess width W andthe rotation radius r2 is expressed by the following expression (1).

$\begin{matrix}{{\text{W}/2} > \text{r2}} & \text{­­­(1)}\end{matrix}$

The camera base part 12-1 pivot-supports the coupling unit 12 to bewholly rotatable relative to the body unit 11 about a pivot axis Z1.More specifically, the camera base part 12-1 is rotatable about thepivot axis Z1 with end faces of an exterior column shape of the camerabase part 12-1 sliding against the body unit 11.

It is preferable in regard to strength if a pivot penetrates throughboth of end faces of the camera base part 12-1. However, a two-partpivot in which pivots are inserted toward one another through the twoend faces is possible, and a cantilever pivot is also possible. Thecamera orientation part 12-2, at which the camera 21 is mounted, issupported by a cantilever pivot to be rotatable relative to the camerabase part 12-1 about a pivot axis Z3, which is arranged substantiallyorthogonally to the pivot axis Z1.

An arrangement direction of the camera 21 is substantially at 90°relative to the pivot axis Z3. That is, the camera 21 may be movedthrough solid angles relative to the body unit 11 by rotatingindependently about the two substantially orthogonal rotation axes, thepivot axis Z1 and the pivot axis Z3.

Thus, the coupling unit 12 is a unit that directly or indirectly couplesthe camera 21 relatively rotatably to the body unit 11 by pluralrotation axes, including the pivot axis Z1 that changes an angle formedby an optical axis direction of the camera 21 and the normal directionof the display unit 13 and the pivot axis Z3 that is in a differentdirection from the pivot axis Z1 (a direction that is substantiallyorthogonal thereto in the present example). The coupling unit 12includes at least one movable part smaller in volume than the body unit11. In the present example, the camera base part 12-1 and the cameraorientation part 12-2 are provided to serve as the movable part. It issufficient that the camera 21 that is an image capture unit be disposedat a predetermined surface of one of the at least one movable part. Inthe present example, as described above, the camera 21 is disposed atthe front surface of the camera orientation part 12-2. The angle betweenthe direction of the pivot axis Z1 and the direction of the pivot axisZ3 is substantially 90°.

The information processing terminal 1 is further provided with a stand14 such that the information processing terminal 1 may be disposedstanding on a table or the like. The stand 14 is pivot-supported to berotatable relative to the body unit 11 about a pivot axis Z2. That is,the stand 14 is formed in a frame shape and, when rotated about thepivot axis Z2, self-supportingly stabilizes the information processingterminal 1 on a horizontal surface (see FIG. 5A and FIG. 5B, describedbelow) by forming an arbitrary preferable angle with the body unit 11.The planar shape substantially in a squared “U” shape that isillustrated is an example. It will be clear that a planar substantiallyrounded “U” shape or the like is possible. If usage on a verticalsurface, described below, is anticipated, a planar hook shape or thelike is also possible.

Because the stand 14 is formed in the frame shape to encircle thecoupling unit 12, efficient use of space may be greatly improvedcompared to disposing the stand 14 and the coupling unit 12 atrespectably separate locations, and an unnecessary increase in size ofthe casing of the information processing terminal 1 may be avoided. Inaddition, unnecessary division of internal circuit boards may beavoided. Center lines of both end faces of the coupling unit 12 and thestand 14 substantially coincide with the rotation axes thereof, asillustrated by line A-A.

Below, the pivot axis Z1, pivot axis Z2 and pivot axis Z3 are described.The pivot axis Z1 is the rotation center of the pivot connecting thebody unit 11 with the coupling unit 12. A rotation range of the pivotaxis Z1 is substantially at least 180° from the rear surface 11 b, andis preferably more than 270°.

The pivot axis Z2 is the rotation center of the pivot connecting thebody unit 11 with the stand 14. The rotation range of the pivot axis Z2preferably reaches 180° from the rear surface 11 b. In particular,appropriate rotation resistance is provided such that an arbitrary angleup to 90° from the rear surface 11 b may be maintained in opposition toa moment of weight of the information processing terminal 1 on ahorizontal surface. Consequently, a user may dispose the informationprocessing terminal 1 to be self-supportingly stabilized at a desiredangular attitude on a horizontal surface. A portion of the stand 14 maybe provided that is offset to the side thereof at which the the pivotaxis Z2 is provided. Thus, the rotation centers of the pivot axis Z1 andpivot axis Z2 may be made to coincide.

The pivot axis Z3 is the rotation center of the pivot connecting thecamera base part 12-1 with the camera orientation part 12-2. The pivotaxis Z3 is provided substantially orthogonally to the pivot axis Z1, androtates in a substantially orthogonal plane about the pivot axis Z1. Therotation range of the pivot axis Z3 preferably reaches 180° to both leftand right through the substantially orthogonal plane in which the pivotaxis Z3 rotates about the pivot axis Z1.

FIG. 3A to FIG. 3C are views depicting states in which the coupling unitof the information processing terminal in FIG. 1A to FIG. 1C is rotated.FIG. 3A depicts a state in which the coupling unit

12 (more precisely, the camera base part 12-1) of the informationprocessing terminal 1 in FIG. 1A to FIG. 1C has been rotated by 90°about the pivot axis Z1. FIG. 3B depicts a state in which the couplingunit 12 (more precisely, the camera base part 12-1) has been rotatedfurther from the state in FIG. 3A and has been rotated by 180° about thepivot axis Z1. FIG. 3C depicts a state in which the coupling unit 12(more precisely, the camera orientation part 12-2) has been rotated fromthe state in FIG. 3B by 90° about the pivot axis Z3. As illustrated inFIG. 3A to FIG. 3C, a distance h1 is the furthest distance from therotation axis (center) of a first hinge to an upper side surface of thebody unit 11 of the information processing terminal 1 (smartphone), atop surface of the information processing terminal 1 (the surface atwhich the display unit 13 is located) or a bottom surface of theinformation processing terminal 1 (a surface at which the display unit13 is not located). A distance h2 is the distance from the rotation axis(center) of the first hinge to a rotational cross-section of a secondhinge. The relationship between distance h1 and distance h2 is expressedby the following expression (2).

FIG. 4A to FIG. 4C are views depicting states in which the stand 14 ofthe information processing terminal 1 is rotated. FIG. 4A depicts thesame state as FIG. 3B described above, in which the stand 14 has notbeen rotated and is stowed in the body unit 11. FIG. 4B depicts a statein which the stand 14 has been rotated about the pivot axis Z2 from thestate in FIG. 4A, the stand 14 having been rotated by 180° about thepivot axis Z2. As with FIG. 3A to FIG. 3C, the relationship betweendistance h1 and distance h2 is the same relationship as in expression(2).

$\begin{matrix}\text{h2>h1} & \text{­­­(2)}\end{matrix}$

As illustrated in FIG. 4C, the information processing terminal 1 may beattached to a wall KB by the stand 14 being put into the state that isturned 180° about the pivot axis Z2 as illustrated in FIG. 4B, and auser hanging the stand 14 on a clip CL or the like at the wall KB. Inthe state in FIG. 4C, the optical axis direction of the camera 21 (asubject imaging direction) and the normal direction of the display unit13 (a direction in which the user views the display unit 13) are normaldirections to the surface of the wall KB. Therefore, when posed to facethe wall KB, a user may easily capture a photograph with themself as asubject, known as a selfie shot, while viewing the camera viewpointimage (an image showing themself).

As described above, the stand 14 is rotated relative to the body unit 11by the pivot axis Z2, and the camera 21 (the coupling unit 12) isrotated relative to the display unit 13 (the body unit 11) by two axes,the pivot axis Z1 and the pivot axis Z3. Therefore, when a user istaking a selfie shot or the like, the information processing terminal 1may be hung on the wall KB and used as illustrated in FIG. 4C, or theinformation processing terminal 1 may be stood on a table and used asillustrated in FIG. 5A and FIG. 5B.

FIG. 5A and FIG. 5B are views depicting a state in which the informationprocessing terminal 1 in FIG. 1A to FIG. 1C is used standing on a table.FIG. 5A is a perspective view from a viewpoint viewing the front surface11 a side of the information processing terminal 1 at which the displayunit 13 is disposed. FIG. 5B is a perspective view showing the state ofuse of the information processing terminal 1 of FIG. 1A to FIG. 1C onthe table, viewing the rear surface 11 b side at which the display unit13 is not disposed. In this state, the stand 14 according to theembodiment is rotated by not more than 90° about the pivot axis Z2 fromthe state in FIG. 4A.

Appropriate rotation resistance is provided to the pivot axis Z2 suchthat an arbitrary angle up to 90° from the rear surface 11 b may bemaintained in opposition to the moment of weight of the informationprocessing terminal 1 on a horizontal surface. Consequently, a user maydispose the information processing terminal 1 to be self-supportinglystabilized at a desired angular attitude on the horizontal surface.

When a user is capturing an image of themself or the like with theinformation processing terminal 1 in FIG. 1A to FIG. 1C, the user standsthe information processing terminal 1 on a table or the like in a statethat is modified such that the body unit 11 and the stand 14 are openedup by a predetermined angle, as illustrated in FIG. 5A and FIG. 5B. Inthis state, the camera 21 of the information processing terminal 1 maybe directed at the subject by rotation of the pivot axis Z1 and thepivot axis Z3.

By use of a shutter remote control function, a self-timer function orthe like, the information processing terminal 1 may capture imageswithout the body unit 11 having to be held in a hand. Thus, theinformation processing terminal 1 may solve various problems, which aredescribed later.

When the information processing terminal 1 to which the presentinvention described above is applied is employed, various effects asdescribed below may be provided.

Selfie shots using the front camera of a conventional smartphone havebecome popular worldwide, particularly in Asia. However, a conventionalsmartphone has the problems described below. Effects that may solvethese problems may be provided by use of the information processingterminal 1 in which the present invention is applied.

For example, a user using a conventional smartphone may take aphotograph of themself from a distance not more than the length of theirarm by pressing a shutter button with their hand. Thus, there is a limiton the angle of view. Therefore, not all of people the user wishes tophotograph together with themself (family, partner, friends or the like)may be in the angle of view, and it may not be possible to take aphotograph of the whole of the user’s body. As a conventional method tosolve this problem, a method of using a selfie stick is available. Withthis method, the user may take a photograph from a distance that is morethan the length of their arm. However, photography from a distance thatis further by more than the length of the selfie stick is not possible.Moreover, it may be necessary to walk while holding the selfie stick,and there are places in which the use of selfie sticks is prohibitedwith a view to safety (theme parks, sports facilities, concert halls,station platforms and so forth). Thus, selfie sticks are not a solutionfor all situations. Thus, there is a desire to capture images withoutusing a selfie stick. A solution to this problem is to use theinformation processing terminal 1 in which the present invention isapplied. That is, because the information processing terminal 1 in whichthe present invention is applied includes the stand 14, the informationprocessing terminal 1 may be set on a wall, a table or the like asillustrated in FIG. 4A to FIG. 5B and the like, and a selfie stick isunnecessary.

If a photograph can only be captured by the user extending an arm andpressing a shutter button with their arm extended, the user is in anunnatural pose. When a selfie stick is used, this unnaturalness may beslightly moderated but there is still some unnaturalness, and the usermay not be able to adopt a pose they want to capture (for example, apose employing both arms or the like).

Thus, there is a desire to capture images without using a selfie stick.A solution to this problem is to use the information processing terminal1 in which the present invention is applied. That is, when theinformation processing terminal 1 in which the present invention isapplied includes the stand 14, a self-timer and a shutter remote controlfunction, the information processing terminal 1 may be set on a wall, atable or the like as illustrated in FIG. 4A to FIG. 5B and the like, anda selfie stick is unnecessary.

Taking a selfie with a larger number of people is a group photographrather than a selfie. If the user uses their own hand, even with aselfie stick, not everyone may be captured within the frame of thecamera. In such cases, one person in the group may move out of the placeand act as a photographer, but then the photographer cannot be in thegroup photograph. In a restaurant before a party or the like, a memberof staff can often be asked to take a group photograph. However, havingto make this request to a member of staff is troublesome.

Thus, there is a desire to include all image subjects in a photographwithout inconveniencing a person other than the image subjects. Asolution to this problem is to use the information processing terminal 1in which the present invention is applied. That is, because theinformation processing terminal 1 in which the present invention isapplied includes the stand 14 and the biaxial rotation mechanism of thecamera, the information processing terminal 1 may be set on a wall, atable or the like as illustrated in FIG. 4A to FIG. 5B and the like, andthe hand of a person other than the image subjects is not needed.

When a user wants to capture themself using the camera of a smartphonewhile viewing themself in, for example, a sporting form, image captureis not possible unless the smartphone is set on the ground, a table orthe like. Thus, imaging with a smartphone is often abandoned.

Similarly, when a smartphone is to be placed on a table or the like anda selfie shot is to be taken, if the smartphone is placed with the frontcamera directed at the subject, the placing is not stable or it takestime to place the smartphone.

Thus, there is a desire to capture images without using a tripod. Asolution to this problem is to use the information processing terminal 1in which the present invention is applied. That is, because theinformation processing terminal 1 in which the present invention isapplied includes the stand 14 and the biaxial rotation mechanism of thecamera, the information processing terminal 1 may be set on a wall, atable or the like as illustrated in FIG. 4A to FIG. 5B and the like, anda tripod is unnecessary. Further, when a portrait orientation image isto be captured, the stand 14 may be erected and the coupling unit 12rotated by 180° or more, as illustrated in FIG. 9A and FIG. 9B. Thus, animage may be captured in a state in which the information processingterminal 1 is set on a table, and a tripod is unnecessary. In suchcases, the stand 14 does not necessarily have to be erected.

When using a smartphone for a video chat, a person often has to hold thesmartphone for the whole duration of the chat in order to show theirface to the front camera of the smartphone.

In a survey, 80% of respondents say that they hold smartphones in theirhands while chatting and that, depending on the duration of the chat,their arms get tired.

Thus, there is a desire to conduct video chats without holdingsmartphones in hand. A solution to this problem is to use theinformation processing terminal 1 in which the present invention isapplied. That is, because the information processing terminal 1 in whichthe present invention is applied includes the stand 14 and the rotationmechanism of the camera, the information processing terminal 1 may beset on a wall, a table or the like as illustrated in FIG. 4A to FIG. 5Band the like, and there is no need to hold the smartphone by hand.Further, when a portrait orientation image of a user’s face is to becaptured and a video chat conducted, the stand 14 may be erected and thecoupling unit 12 rotated by 180° or more, as illustrated in FIG. 9A andFIG. 9B. Thus, images may be captured in a state in which theinformation processing terminal 1 is set on a table, and the smartphoneneed not be held by hand. In such cases, the stand 14 does notnecessarily have to be erected.

As a further solution to these problems, there is a method of equippinga smartphone with a stand for placing the smartphone on a table or thelike. However, the angle between a display surface and a front camera isfixed by the stand. Therefore, the camera is not necessarily directed ata subject, and this is not a solution for all purposes in capturingphotographs and video images.

Thus, there is a desire to capture images without using a front camerawhose angle is fixed. A solution to this problem is to use theinformation processing terminal 1 in which the present invention isapplied. That is, because the information processing terminal 1 in whichthe present invention is applied includes the stand 14 and the biaxialrotation mechanism of the camera, the rear camera may be brought roundto the front face by biaxial rotation as illustrated in FIG. 4A to FIG.5B and the like and oriented to an arbitrary angle. Thus, a front camerawith a fixed angle is unnecessary. Further, when a portrait orientationimage is to be captured, the stand 14 may be erected and the couplingunit 12 rotated by 180° or more, as illustrated in FIG. 9A and FIG. 9B.Thus, an image may be captured in a state in which the informationprocessing terminal 1 is set on a table, and a front camera with a fixedangle is unnecessary. In such cases, the stand 14 does not necessarilyhave to be erected.

Even when a smartphone is equipped with a stand, if there is no place toput the smartphone and there is only a wall, it may not be possible toplace the smartphone. As a solution to this problem, there is a methodof hanging an information processing terminal on a wall and fixing theinformation processing terminal. However, it is necessary to prepare ahook for the smartphone, in addition to which space for the smartphonebody is required.

Thus, there is a desire to avoid providing separate hooks. A solution tothis problem is to use the information processing terminal 1 in whichthe present invention is applied. That is, when the informationprocessing terminal 1 in which the present invention is applied is putinto a state in which the coupling unit 12 and the stand 14 are rotatedby 180°, a gap provided between the stand 14 and the coupling unit 12may be utilized and the information processing terminal 1 may besuspended from a protruding member, pin-shaped member or the like on aflat surface. Thus, the information processing terminal 1 may beexcellently employed hanging from a wall, and there is no need toprovide a separate hook.

In general, compared to a rear camera, a front camera has:

-   (a) lower resolution;-   (b) lower sensitivity (dark scenes cannot be captured without    flash);-   (c) fixed focus and no autofocus;-   (d) with autofocus, a slow autofocusing speed;-   (e) low zoom ratio; and-   (f) no flash. Thus, there are many weaknesses in performance and    images may not be captured with excellent image quality. In    addition, when there are differences in performance between a rear    camera and a front camera, it is necessary to develop two cameras    for the same model of image processing terminal. As a solution to    this problem, apps for taking selfie shots with a rear camera are    available. However, because the display unit cannot be seen, control    is conducted by voice or the like and usability is very poor.

Thus, there is a desire to avoid using application programs for takingselfie shots without viewing the display unit. A solution to thisproblem is to use the information processing terminal 1 in which thepresent invention is applied. That is, because the informationprocessing terminal 1 in which the present invention is applied allowsthe camera 21 that is a high-performance camera to be directed in anyarbitrary direction relative to the terminal body and allowsphotographing to be performed in a free position while allowing for theviewing of the camera viewpoint image, application software for takingselfies without viewing the display unit 13 is unnecessary.

A stand and a rotating camera are another solution, but respectivepivots for rotation are required at the camera body, space must bereserved for these two pivots, and the casing of the body is larger.Moreover, depending on how the camera can be rotated, the camera isoften not directed at a subject even when the camera of the standingsmartphone has been rotated. Thus, this solution is often notapplicable. The number of rotation axes may be increased to allow thecamera to be directed at subjects. However, always having to direct thecamera at a subject before imaging when capturing photographs may betroublesome in many cases.

Thus, there is a desire to always direct a camera at subjects with asmall number of rotation axes. A solution to this problem is to use theinformation processing terminal 1 in which the present invention isapplied. That is, with the information processing terminal 1 in whichthe present invention is applied, because the pivot axes of both thestand 14 and the camera 21 may be utilized, the camera 21 may always bedirected at subjects just by biaxial rotation as illustrated in FIG. 4Ato FIG. 5B and the like. Thus, there is no need to increase the numberof rotation axes.

In a conventional information processing terminal in which a rear cameraand a front display unit are fixed at the body, because the direction ofthe camera and the direction of the display unit are opposed, it isdifficult to view the display unit while capturing high angle shots, inwhich images are captured from positions higher than the eyes, and lowangle shots, in which images are captured from positions lower than thewaist. For example, when taking a photograph of a subject surrounded bya crowd, a high angle shot must be taken from above the crowd, but whenthe camera is directed at the subject, the display unit is directedupward and the camera viewpoint image may not be viewed during imagecapture.

Similarly, when the camera is directed at a subject at a position higherthan the camera from a position lower than the user’s waist, the displayunit is directed downward and the camera viewpoint image may not beviewed during image capture. As a solution to this problem, the cameramay be rotated to set the direction of the camera and the direction ofthe display unit separately. Hence, the camera viewpoint image may beviewed during image capture.

When the camera is rotated in this situation, the vertical orientationof the image may change and, if no particular measures are taken, thevertical orientation may be upside down or the like. If a direction inwhich the camera is rotated for high angle shots and low angle shots isfixed (the camera only rotates in the clockwise direction from a regularposition, or the like), capturing images is more difficult. Therefore,it is preferable if the camera is rotatable in both directions.

Thus, there is a desire to capture images without using a rear camerawhose angle is fixed. A solution to this problem is to use theinformation processing terminal 1 in which the present invention isapplied. That is, because the information processing terminal 1 in whichthe present invention is applied includes the stand 14 and the biaxialrotation mechanism of the camera 21, the camera 21 may be oriented inany arbitrary direction up or down to the rear by biaxial rotation asillustrated in FIG. 4A to FIG. 5B and the like, and a rear camera with afixed angle is unnecessary. It is preferable if an angle of view to beimaged (a wide view, a usual view, a narrow view or the like) can beautomatically switched at a certain time when the camera 21 is beingrotated. In general, the optical axis direction at a side at which afront camera is disposed is used more often for short distances tosubjects. Therefore, this side is to be used for wide-angle photography,and the optical axis direction at a side at which a rear camera isdisposed is to be used for usual or narrow-angle photography.Accordingly, it is preferable if the angle of view is automaticallychanged in accordance with the direction of the camera.

When taking a selfie shot, a shutter button, touch panel or the likemust be pressed to release the shutter. Thus, it may not be possible tohold a smartphone firmly, and the smartphone may become unstable and bedropped. As a solution to this problem, the shutter is released bytimer-setting, gesture recognition, voice recognition or the like.However, it may be difficult to recognize a timing at which the shutteris released, response may be slow, and usage is difficult when trying tocapture a moment in which, as an example, five people are jumping.

Thus, there is a desire to capture images without taking a hand from thesmartphone to press a shutter button. A solution to this problem is touse the information processing terminal 1 in which the present inventionis applied. That is, because the information processing terminal 1 inwhich the present invention is applied includes a shutter remote controlsupport function, when a selfie shot is to be taken as illustrated inFIG. 4A to FIG. 5B and the like, the shutter can be released without apress of a shutter button, touch panel or the like, and there is no needto hold the smartphone firmly.

Even with the shutter remote control support function, when, forexample, ten people are to be imaged in a group shot, the informationprocessing terminal 1 is placed on a table or the like, the camera 21 isrotated to be directed at the ten people, and the user moves away fromthe information processing terminal 1. Hence, the display unit 13appears small. Because it may be hard to see whether all the people arewithin the frame of the camera viewpoint image, their individualexpressions cannot be seen and the like, it may be difficult to operatethe shutter. Thus, there is a desire to capture images while viewing thecamera viewpoint image by some method. A solution to this problem is touse the following technique. That is, a technique may be employed ofequipping the information processing terminal 1 in which the presentinvention is applied with an image sharing function that enablestransmission and control of the camera viewpoint image, by wire orwireless, to another information processing terminal such as asmartphone, a personal computer or the like. Thus, the camera viewpointimage of the information processing terminal 1 may be shared withanother information processing terminal, and a still image or videoimage may be captured from a position separated from informationprocessing terminal 1. The information processing terminals may bedirectly connected to one another or, using an Internet circuit, thecamera viewpoint image of the information processing terminal 1 locatedin a home may be shared with a personal computer in an office. Thus, animage of a pet left at home may be captured while viewing the image onthe personal computer.

With a conventional digital camera, smartphone or the like, a compositepanorama shot may be captured by moving the camera laterally. However,this image must be captured while the smartphone, camera or the like isbeing laterally moved to be directed in various directions, and it isoften not possible to composite the image neatly.

Thus, there is a desire to image surroundings with a camera withoutlaterally moving the body of the camera. A solution to this problem isto use the information processing terminal 1 in which the presentinvention is applied. That is, in the information processing terminal 1in which the present invention is applied, rotation of the camera 21about the pivot axes Z1 and pivot axis Z3 may be electrified. Hence, thecamera 21 may be panned as illustrated in FIG. 3A to FIG. 3C while thebody stays still, and there is no need to laterally move the camera 21.

Heretofore, there have been attempts to utilize personal gestures tocontrol equipment and video games. However, it is important for a camerato always be directed at the subject to recognize gestures.Consequently, a camera terminal and a game terminal must be providedseparately, and this processing cannot be performed by a smartphonealone. In addition, cameras for gesture recognition are very expensiveand generate additional costs.

Thus, there is a desire for gesture recognition without using adedicated gesture recognition camera. A solution to this problem is touse the information processing terminal 1 in which the present inventionis applied. That is, in the information processing terminal 1 in whichthe present invention is applied, the camera 21 directed at a person mayperform high-level functions (for example, EXVISION gesturerecognition), and a dedicated gesture recognition camera is unnecessary.

Heretofore, navigation software for walkers has been available forsmartphones. However, particularly outdoors, it may not be easilyunderstood which direction the user is facing in. Thus, the user may notunderstand or may require time to understand which direction to walk in.As a solution to this problem, navigation with augmented reality (AR)utilizing a camera is available.

In this navigation, a user interface superimposes arrows on an actualvideo image captured by the camera. Consequently, the navigation may beused immediately without time being required to verify the direction.However, in order to capture the image with a camera that is fixed at anangle orthogonal to the rear surface of a body unit, the smartphone bodymust be continuously held perpendicular to the ground. At this angle,the display unit is hard to see and continuous holding is tiring.

Smartphone walking, the behavior of using a smartphone while walkingoutside, has become a social nuisance. Because a user is concentratingon the screen, the user lacks awareness until they come near to acollision. These two problems may be solved with a rotating camera.During smartphone walking, a video image from the rotated camera 21 maybe displayed in a window in the display unit 13, the presence ofobstacles may be reported by sounds, images, vibrations and the like,and hazards may be avoided.

In the embodiment, when the camera is rotated to a vertical directionrelative to the display screen, the above two problems may be solved.However, when the direction of the camera rotates smoothly, the cameramay move loosely and be unstable.

Thus, there is a desire to avoid free movement and instability of thecamera when the body is being held stable. A solution to this problem isto use the information processing terminal 1 in which the presentinvention is applied. That is, in the information processing terminal 1in which the present invention is applied, rotation of the camera 21 maybe locked at a particular angle and, provided the body unit 11 is heldstable, the camera 21 is stable.

In recent years, driving recorders mounted in cars, bicycles and thelike have spread rapidly. The purpose of driving recorders is to, in theevent of an accident, provide objective evidence about the accident byrecording image data, global positioning system (GPS) data and the like.A smartphone may be used in place of a driving recorder by installing anapplication on the smartphone, but this has not become widespread. In acar, a holder is used that fixes a smartphone or the like on the car’sdashboard with a sucker, two-sided tape or the like, and the smartphoneis secured such that the display unit is easy for a driver to see. Inthis case, the optical axis direction of the camera of the smartphone isnot directed to the vehicle front or rear, which it would be desirableto image, but only captures the dashboard. That is, when a smartphone isplaced at a position that is easy for a driver to see and that does notimpede driving, the smartphone cannot perform the function of a drivingrecorder. If priority is given to image capture as a driving recorder,the smartphone must be placed at a position that is more difficult forthe driver to see. Therefore, it is not possible to use a smartphone formultiple purposes such as using the smartphone as both a drivingrecorder and a navigation system or the like. The same applies tobicycles. It may be that the use of smartphones as driving recorders isnot widespread for this reason. Thus, there is a desire to use asmartphone as a driving recorder while also using the smartphone forother purposes. A solution to this problem is to use the informationprocessing terminal 1 in which the present invention is applied. Thatis, in the information processing terminal 1 in which the presentinvention is applied, the camera 21 may be directed to any arbitrarydirection relative to the terminal body, and while a navigation map isbeing displayed, a portion of the screen may display the cameraviewpoint image in a picture-in-picture mode. Thus, the smartphone maybe used for other purposes at the same time as being used as a drivingrecorder. As a result, a dedicated driving recorder is unnecessary. In acar, the information processing terminal 1 is placed in landscapeorientation. However, because the camera 21 can be rotated about twoaxes, the information processing terminal 1 is compatible with a widerange of placing formats, such as placing in portrait orientation on abicycle and so forth.

In the smartphone industry, it is apparent that the future will bringmore cases of multiple sensors being installed in the rear camera andused for range measurement, zooming and the like as well as forcapturing photographs. If the same modifications are made to the frontcamera side, costs will rise greatly. Therefore, it is very likely thatthere will be functional differences between the front and rear cameras.

Thus, there is a desire to raise the performance only of the rearcamera. A solution to this problem is to use the information processingterminal 1 in which the present invention is applied. That is, in theinformation processing terminal 1 in which the present invention isapplied, when deployment of a stereo camera is anticipated and therotatable camera 21 is provided, the application of an additionalfunction to the front camera is unnecessary.

It should be noted that the present invention is not limited to theembodiment described above, and any modifications and improvementsthereto within a scope that can realize the object of the presentinvention are included in the present invention.

For example, in the embodiment described above, the coupling unit 12 isstructured by two movable parts, the camera base part 12-1 and thecamera orientation part 12-2, but the above embodiment is notparticularly limiting. It is sufficient to include at least one movablepart that is smaller in volume than the body unit 11. Herein, it issufficient for the camera 21 that is the image capture unit to bedisposed at a predetermined surface of one of the at least one movablepart. Devices with arbitrary functions may be mounted at arbitrarynumbers of arbitrary types of the one or more movable parts (includingthe movable part at which the image capture unit is disposed).

For example, as illustrated in FIG. 6A to FIG. 6C, a projector 22 may bemounted at the camera orientation part 12-2 at which the camera 21 ismounted. FIG. 6A to FIG. 6C depict an embodiment of the informationprocessing terminal of the present invention and show the states ofrotating the coupling unit which is different from the coupling unit ofembodiment in FIG. 1A to FIG. 1C.

In FIG. 6A, the coupling unit 12 (more precisely, the camera base part12-1) of the information processing terminal 1 in FIG. 1A to FIG. 1C isin a state that is rotated 180° about the pivot axis Z1. In FIG. 6B, thecoupling unit 12 (more precisely, the camera orientation part 12-2) isin a state that is rotated 90° rightward about the pivot axis Z3 (asviewed from the side of the body unit 11 at which the front surface 11 ais disposed) from the state in FIG. 6A. As illustrated in FIG. 6B, thecircular camera 21 is disposed substantially at the center of the frontsurface of the camera orientation part 12-2 (the surface at the sideseen in FIG. 6B). In FIG. 6C, the coupling unit 12 (more precisely, thecamera orientation part 12-2) is in a state that has been rotated 90°leftward about the pivot axis Z3 (as viewed from the side of the bodyunit 11 at which the front surface 11 a is disposed) from the state inFIG. 6A. As illustrated in FIG. 6C, the circular projector 22 isdisposed substantially at the center of the rear surface of the cameraorientation part 12-2 (the surface at the side seen in FIG. 6C, which isthe surface opposing the front surface). As with FIG. 3A to FIG. 3C, therelationship between the distance h1 and the distance h2 is the samerelationship as in expression (2).

In the information processing terminal 1 according to the embodiment inFIGS. 6A to 6C, the stand 14 is rotated relative to the body unit 11 bythe pivot axis Z2, and the camera 21 (the coupling unit 12) is rotatedrelative to the display unit 13 (the body unit 11) by the two axes, thepivot axis Z1 and the pivot axis Z3. Therefore, when a user is capturinga selfie shot or the like, the information processing terminal 1 may bestood on a table and used as illustrated in FIG. 7 .

FIG. 7 is a view depicting a state in which the information processingterminal 1 in FIG. 6A to FIG. 6C is used standing on a table. The camera21 is imaging a user U. The image captured by the camera 21, which is tosay a camera viewpoint image containing an image Ug 1 of the user U, isdisplayed at the display unit 13. As illustrated in FIG. 7 , theprojector 22 is disposed at the camera orientation part 12-2, in therear surface that opposes the front surface in which the camera 21 isdisposed. Accordingly, the projector 22 may project the image capturedby the camera 21, which is to say the camera viewpoint image containingan image Ug 2 of the user U, onto a screen Scr. As a result, the cameraviewpoint image may be viewed by the user U via the display unit 13, andmay be viewed by other people, who are not depicted in the drawing, viathe screen Scr.

It is not particularly necessary for images displayed at the displayunit 13 and images projected onto the screen Scr by the projector 22 tocompletely match as in the example in FIG. 7 ; the images may bedifferent. For example, if the information processing terminal 1 isbeing used as a videophone, the image of the user U (the cameraviewpoint image from the camera 21) may be displayed at one of thedisplay unit 13 and the screen Scr and an image of a communicationpartner may be displayed at the other of the display unit 13 and thescreen Scr. As other examples, the camera 21 and the projector 22 neednot be disposed at opposing positions of the coupling unit 12, but maybe disposed in the same surface, and may be disposed in differentsurfaces.

Further, in the example in FIG. 6A to FIG. 7 , the camera 21 and theprojector 22 are mounted at the same movable part (the cameraorientation part 12-2). Therefore, either the imaging direction of thecamera 21 or the projecting direction of the projector 22 is limited.Accordingly, although not illustrated, a movable part separated from thecamera orientation part 12-2 may be provided and the projector 22 may bemounted at this movable part. Hence, the imaging direction of the camera21 and the projection direction of the projector 22 may be directed toarbitrary directions respectively independently.

As a further example, in the embodiment described above, the stand 14 isstructured so as to rotate about the pivot axis Z2 to positionsperpendicular to the length direction of the body unit 11, but this isnot particularly limiting. FIG. 8 is a view depicting a state of use, ona table, of an embodiment of the information processing terminalaccording to the present invention, which embodiment is different fromthose in FIG. 1A to FIG. 1C and FIG. 6A to FIG. 6C.

In the information processing terminal 1 according to the embodiment inFIG. 8 , a stand 23 is rotated approximately 50° about a pivot axis Z4toward the side thereof at which the rear surface 11 b is disposed, thestand 23 is stood on the table, and then the camera 21 is rotated aboutthe pivot axis Z1 and the pivot axis Z3 and put into a state that isdirected to allow a selfie shot. The stand 23 has substantially the sameexterior dimensions as a short side of the body unit 11. When an openingangle of the stand 23 from the body unit 11 is at 0°, the stand 23 ismorphologically integral with the body unit 11, structuring a lower endportion of the information processing terminal 1 as a whole.

The pivot axis Z4 rotatably couples the stand 23 to the body unit 11 ata corner portion of the body unit 11. The axial direction of the pivotaxis Z4 is substantially parallel with a long side of the body unit 11.The pivot axis Z4 provides appropriate rotation resistance to keep theinformation processing terminal 1 stable in opposition to a moment ofweight of the information processing terminal 1. Intermediate positionsat which rotation of the pivot axis Z4 can be stopped may be provided atplural points up to an opening angle of 90°.

The pivot axis Z4 allows the stand 23 to rotate at least up to 90°toward the side thereof at which the rear surface 11 b is disposed.Thus, as described above, the opening angle between the body unit 11 andthe stand 23 may be set to 0°. Because the axial direction of the pivotaxis Z4 is substantially parallel with the long edge of the body unit 11as mentioned above, in order to capture a selfie shot, a user stands theinformation processing terminal 1 on a table as illustrated in FIG. 8and, when using the information processing terminal 1 in landscapeorientation, adjusts the rotation angle of the pivot axis Z4 to match astanding angle of the body unit 11. Thus, adjustment of the angle iseasy.

In other words, from a state in which the information processingterminal 1 is laid flat on a table, the body unit 11 side may be liftedup while the stand 23 is kept placed on the table surface, to put theinformation processing terminal 1 into the usage state in FIG. 8 .Hence, by gently pushing the body unit 11 side onto the table surfacefrom this state, a user may put the information processing terminal 1into a laid flat state with higher stability, without lifting up theinformation processing terminal 1.

With the stand 23, finer angular adjustment is possible. Therefore, if asubject is higher than the front camera or a uniaxially rotatablecamera, the camera may be directed precisely at the subject even withouta biaxial camera.

FIG. 9A and FIG. 9B are views depicting a state which the informationprocessing terminal in FIG. 1A to FIG. 1C is used standing on a table.FIG. 9A is a perspective view showing a state in which the informationprocessing terminal is stood on the table in portrait orientation andused. FIG. 9B is a side view showing the state in which the informationprocessing terminal is stood on the table in portrait orientation andused.

In the information processing terminal 1 according to the embodiment inFIG. 9A and FIG. 9B, the stand 14 is rotated less than 90° about thepivot axis Z2 toward the side thereof at which the rear surface 11 b isprovided, the stand 14 is stood on a table, and then the pivot axis Z1is rotated to put the information processing terminal 1 into a state inportrait orientation in which the camera 21 is directed to allow aselfie shot. For example, when the information processing terminal 1 isused for a video chat, in order to use the information processingterminal 1 comfortably, a user at a receiving side may switch betweenportrait orientation and landscape orientation to match a portraitorientation image or landscape orientation image of a communicationpartner.

If the communication partner’s image is in portrait orientation but aselfie may not be captured while the information processing terminal 1side is upright in portrait orientation, the user at the informationprocessing terminal 1 side must continue to hold the informationprocessing terminal 1 in their hand or force imaging in landscapeorientation while the communication partner stays in portraitorientation, or both parties must tolerate images of one another attheir display units that are small or cropped. In contrast, with theinformation processing terminal 1 in FIGS. 1A to 1C, because the stand14 and the rotation mechanism of the image capture unit are provided,even when there is not a suitable wall surface in the vicinity or afixing piece such as a protrusion, a pin or the like that is capable ofsupporting the information processing terminal 1 hanging from a wallsurface, the information processing terminal 1 may be stood on a tablein portrait orientation. As a result, these can solve all the problemssuch as the burden of keeping the information processing terminal 1 inportrait orientation and camera shaking during handheld imaging.

An application program of the camera 21 may automatically start up whenthe pivot axis Z1 is rotated and the coupling unit 12 is raised.Accordingly, the application program of the camera 21 is available forunexpected opportunities for photography but need not run at all times.Thus, limited battery power need not be wasted. Further, an “open”button that automatically rotates the pivot axis Z1 may be provided at alocation that is easy to operate by pressing, such as a side face of thebody unit 11 or the like, and the coupling unit 12 may be raised simplyby a press of the button.

Usually, when a time-lapse photograph or video is to be captured, amethod is adopted of fixing a camera on a tripod and capturing theimages at a certain interval. However, this requires a lot of equipment,such as the tripod. Moreover, there is a desire to capture images withtime-lapse image capture while moving the direction of a camera tomatch, for example, movement of the sun, rather than completely fixingthe camera. In this case, additional equipment such as a dolly formoving the camera is required, and this must be set up in addition tothe camera.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 10 , theinformation processing terminal 1 includes the biaxial rotationmechanism as illustrated in FIG. 4A to FIG. 5B and the like, and isequipped with the stand 14, the camera 21 and the like. Therefore,without using additional fixing equipment such as a tripod or the like,the camera 21 may be fixed and may capture a time-lapse photograph orvideo image of the sun seen through a window MD.

Further, the information processing terminal 1 depicted in FIG. 10includes plural rotation axes such as the pivot axes Z1 to Z4 describedabove. Therefore, without using additional equipment such as a dolly,the information processing terminal 1 may be set up in advance such thatthe direction of the camera moves to match movement of an object movingat low speed, such as the sun, and may capture a time-lapse photographor video.

The information processing terminal 1 may, for example, rotate thecamera in a horizontal direction through an angle as illustrated in FIG.11A, and may rotate the camera in a vertical direction through an angleas illustrated in FIG. 11B.

When taking a photograph of a subject, a user may want to conceal abackground behind the subject for reasons such as, for example, notwanting an untidy room to be shown, wanting to provide a whitebackground to focus attention on a person or product, and so forth.Conventionally, a lens on a camera has been used to apply blurring, ortwo or more cameras have been used, distances calculated and blurringapplied. However, it is difficult to neatly blur or erase a backgroundaccurately with the single camera of an ordinary smartphone or a lens ona smartphone. In contrast, according to an embodiment of the informationprocessing terminal of the present invention as illustrated in FIG. 12Ato FIG. 13F, the information processing terminal 1 may neatly erase orblur only the background of a captured image.

An image showing an object Obj such as a product, a person or the likeis captured as illustrated in FIG. 12A. Before or after this, an imageof the background alone in which the object Obj does not appear iscaptured, as illustrated in FIG. 12B. Then, parts of the image that arepresent in FIG. 12B are subtracted from the image in FIG. 12A, and animage in which the object Obj alone remains may be created, asillustrated in FIG. 12C. When an image in which only the object remainsas in FIG. 12C is created, this image may be composited with a blurredimage in which the image of the background alone is blurred, as in FIG.13D. Thus, an image in which the background is neatly blurred as in FIG.13F may be created. In a video image, a moving object may be displayedalone by processing similar to that for still images. Thus, applicationto image analysis of a security camera or the like is possible.

A user may want to capture a still image or video image for comparisonwith a previous photograph such as when, for example, comparing aphotograph of a house before a renovation with a photograph after therenovation, making a comparison in order to check the effect of adetergent, or the like. There are very few camera or smartphoneapplications that enable viewing of a previous photograph whilecapturing an image with the same composition.

In contrast, according to an embodiment of the information processingterminal of the present invention, a still image or video image forcomparison with a previous photograph may be captured easily. Asillustrated in FIG. 14A and FIG. 14B, the information processingterminal 1 may display data of a previous photograph semi-transparentlyor may, with a single button, switch display from a live view image fromthe camera capturing the image to the photograph that is to be comparedwith. The display may return to the camera live view image automaticallyor may be returned to the camera live view image by a single action(pressing the button, pressing a remote control button, performing avoice operation or the like). Thus, a photograph for comparison may becaptured easily.

A person who is not used to operating a smartphone or tablet may find itdifficult to understand a user interface (UI) in which visible iconscannot be directly operated. Accordingly, devices such as the XPERIATOUCH that may project a large image with a projector and may beoperated by touches of the projection screen have been brought tomarket. However, prices are high and these devices have manylimitations, such as touches not being effective if a projectiondistance is further than a certain distance. Furthermore, the larger theimage, the further a hand must be moved to reach the screen fortouching. It is difficult to claim that these devices are easy to use.In other words, it is difficult to make close-range operations that areperformed while holding a screen in hand and long-range operations thatare performed at a distance from the screen equivalent.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 15 , a videoimage is displayed at the display unit 13 of the information processingterminal 1, the video image is outputted to a large screen such as a TV,a projector or the like by wireless or by wire, and operations may beperformed with a device such as a laser pointer LP or the like that cansuperimpose an indicator on the large screen. For example, three or moremarkers 24 may be displayed as portions of the video image on the screenScr. The camera 21 of the information processing terminal 1 may captureimages of a cursor P from the laser pointer LP and the three or moremarkers 24. Thus, relative positions of the video image on the screenScr and the cursor P may be identified. The laser pointer LP may beprovided with an on/off button for the cursor P and also with anenlarge/reduce button for the cursor P. The enlarge/reduce button may beintegrated with the on/off button for the cursor P. When the screen isenlarged or reduced, a change of color, shape or the like of the cursormay accompany this change. The cursor P is not limited to a singlepoint; plural cursors may be detected simultaneously. At a time of anenlargement or reduction operation, detection may be performed such thatthe video image is enlarged when two cursors are moved apart and theimage is reduced when the two cursors are brought closer together. Tomake the cursor P easier to identify and be recognized by theinformation processing terminal 1, the video image of the display unit13 that is projected by the TV, projector or the like and the videoimage on the screen on which the cursor P is projected may be capturedin real-time, and the path of the cursor P may be easily identified andrecognized simply from differences between these images. Additionally,the display unit 13 of the information processing terminal 1 and thedisplay that is outputted to the television receiver, projector or thelike do not necessarily have to be the same. For example, imagescaptured by the camera 21 may be displayed at the display unit 13 of theinformation processing terminal 1 or, with the aim of easing processing,nothing may be displayed at the display unit 13.

Nomadic workers who carry a laptop computer or the like, perform workwherever they arrive, and do not have a fixed office or desk arebecoming more numerous. However, when there is a lot of baggage such asa laptop computer and the like to be transported, the baggage is heavyand bulky during transport, and transport is troublesome. Alternatively,if, rather than transporting a laptop computer, work is done only with asmartphone, text input is time-consuming because there is no physicalkeyboard. Voice input is possible but cannot be used in officesrequiring quietness. Dedicated low-profile keyboards and the like arecommercially available, but repeatedly buying low-profile keyboards iscostly. For manufacturers producing keyboards, it is impractical toproduce keyboards for particular languages that do not sell well or tocustomize keyboards.

In contrast, according to the embodiment of the information processingterminal of the present invention, a keyboard printed on a very thinmaterial such as paper or the like may be used as illustrated in FIG. 16. This is excellent in regard to portability and fabrication costs. Thecamera 21 of the information processing terminal 1 in FIG. 16 may befixed by using the stand 14 to stand up the information processingterminal 1 and using the biaxial rotation mechanism of the camera.Hence, the printed keyboard K is imaged, fingers placed on the keyboardK are imaged by the camera, and positions pressed the by fingers may bedetected. For example, a QR code (registered trademark) QR may beprinted in the vicinity of the keyboard K, and the layout of the keys ofthe printed keyboard K may be immediately identified by the QR code QRbeing imaged by the camera 21. As another example, three or more of themarkers 24 may be printed in the vicinity of the keyboard K, key regionsof the keyboard K may be specified, relative positions of the keys beingpressed may be identified, and text may be entered by fingers pressingthe printed keyboard K. The keyboard K may of course have a commonlayout as illustrated in FIG. 17 and, because the keyboard K may befabricated by printing, the keyboard K may be customized exactly asrequired without concern for commercial demand. For example, keys for“Hello”,

-   “I am Ichiro Suzuki”,-   “I am”,-   “Thank you” and so forth may be created and, rather than entering    individual characters, complete phrases may be entered as units. By    such applications, videogame controllers, musical instruments, video    editing desks and DJ mixing desks may be created by printing.    Handwritten texts and drawings may also be imaged by the camera,    enabling handwritten input.

When a smartphone is placed on a desk and stood up with a stand or thelike, and touch operations of the smartphone are performed, because thedisplay at the body is being touched, the smartphone body may be movedbackward, the smartphone may fall over, and the stand of the standingsmartphone may collapse.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 18 , ratherthan the information processing terminal 1 being operated directly,movements of a finger Fn and touches against a table may be imaged bythe camera 21, the movements of the finger Fn may be linked withmovements of a cursor P, and the information processing terminal 1 maybe operated in a similar manner to operation of a computer touchpad.

Similarly, if, for example, a thumb is kept on the table and an indexfinger is moved up and down, operations similar to moving a jog dial ofa mouse are possible. Handwritten text may be entered in the samevicinity.

There are many people who would be satisfied with using a navigation appon a smartphone as a car navigation system, rather than dedicatedequipment. However, for reasons such as actual scenery appearingdifferent from maps, roads may be misidentified. In order to avoid suchmisunderstandings, augmented reality (AR) navigation is available.However, when AR navigation is used, the smartphone must be placed at anangle that is difficult for a driver to see. Moreover, the smartphonemust be placed at a position that may hinder driving. Using a smartphoneas a driving recorder also produces similar problems.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 19A and FIG.19B, the information processing terminal 1 includes the camera 21 thatcan be rotated about plural pivot axes. Therefore, the informationprocessing terminal 1 may be fixed to a car phone holder 25 and theinformation processing terminal 1 may capture a video image in theprogress direction of the car with the camera 21, to act as ARnavigation and as a driving recorder. At the same time, the display unit13 of the information processing terminal 1 may be directed at an anglethat is easy for the driver to see.

During driving of a car or the like, it is common to use a drivingrecorder and a car navigation system or the like. A variety of problemswith drivers can be inferred from movements of the car with thisequipment; for example, a likelihood of falling asleep while driving, alikelihood of driving while intoxicated and the like. However, theseproblems can only be inferred from movements of the car; the conditionof a driver cannot be directly examined.

In contrast, according to an embodiment of the information processingterminal of the present invention, the camera 21 of the informationprocessing terminal 1 usually images in the progress direction asillustrated in FIG. 20A. However, when a hazard or the like is detected,the camera 21 rotates as illustrated in FIG. 20B and images the face andthe like of the driver, and may check the condition of fitness of thedriver.

Fixed cameras such as the AMAZON ECHO LOOK and the like are availablethat may image clothes being worn from day to day. However, if thepositions of image capture do not match up from day to day, the scale ofthe person who is being imaged may vary, and poses also vary. As aresult, clear comparisons cannot be made.

In contrast, according to an embodiment of the information processingterminal of the present invention, when a current captured image asillustrated in FIG. 21A is to be compared with, for example, a previousphotograph as illustrated in FIG. 21B, the camera 21, a swivel cradle 26or the like may be rotated by electric driving and adjusted such that anobject Obj is brought to a suitable position, and a guide to adopting apose may be displayed at the display unit 13 such that the poses are thesame. As the guide, for example, a hand-drawn guide entered by the usermay be displayed. In addition, a state of health of the user may bechecked at the same time as the image capture, and the shutter may bereleased by a voice instruction or gesture.

When a rotatable camera is being used for AR walking navigation, thedirection of the camera changes when the direction of the smartphonechanges, and the person viewing the display may be disoriented.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 22A to FIG.22C, the camera 21 may be electronically controlled using data from aG-sensor or the like so as to continuously direct the camera 21 in afixed direction (for example, the horizontal direction), using the pivotaxis Z1, and an image displayed at the display unit 13 of theinformation processing terminal 1 may be kept constant.

To read a document written in a language that a user does notunderstand, the user must study the language and interpret the meaningor wait for a translation into the user’s language. For a person whowants to read a document immediately, this is a great hurdle.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 23 , a documentB is imaged by the camera 21 and optical character recognition (OCR) isapplied. Thus, text data is recognized, and a translation may bedisplayed at the display unit 13 of the information processing terminal1. The document B is imaged page by page as still images or video imageswithout needing separate shutter presses, using turning of the pages asa trigger, and translation is performed. Reloading of pages may beperformed by voice, and may be performed by sound. Obviously, thedocument B may be converted to text data with using this function.Because the information processing terminal 1 has plural pivot axes atthe coupling unit 12, the angle of the camera 21 can be alteredindependently of the direction of the display unit 13, and this functionis possible. When the information processing terminal 1 is placed on theswivel cradle 26, a distance in the height direction may increase, whichfacilitates the image capture. In addition, by movements of the pivotaxes of the information processing terminal 1 being made to combinerotation of the swivel cradle 26, the direction of the camera 21 may bemade to correspond appropriately with the document B that is beingimaged. As a result, the text may be converted to data more accurately.

When a cash register is used to collect payments in a store, acommercial cash register is usually used. However, these are veryexpensive and require processes such as scanning products with a barcodereader, detecting RFID tags attached to products, and entering productinformation into the cash register. In particular, in the case ofbarcode entry, because it can be difficult to position barcodes, storestaff need to be experienced in barcode entry operations. In a smallbusiness such as a bakery or the like, barcodes cannot be attached tobread itself. Accordingly, shop staff press buttons for products at thecash register.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 24 , theinformation processing terminal 1 that can rotate the camera 21 is used,or the information processing terminal 1 is placed on the swivel cradle26 and the rotating mechanism of the information processing terminal 1is used in combination with the swivel cradle 26. The direction of thecamera 21 is automatically altered to match the positions of barcodes,and the camera 21 may accurately read the barcodes of products beingpurchased such as, for example, chocolate Ch, a drink bottle Pb and thelike. Furthermore, characteristics such as product shapes and the likemay be recognized in advance. Thus, information such as product names,prices and the like may be identified even for products to whichbarcodes are not attached, such as bread and the like.

Entries for domestic bookkeeping and accounts may be simplified byimaging receipts and the like with a camera when products are purchased.However, the receipts must be placed for this imaging, the camera mustbe prepared, and a shutter button must be pressed, which is veryinconvenient.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 25 , theinformation processing terminal 1 that can rotate the camera 21 may beplaced on the swivel cradle 26 on a table, realizing a separation in theheight direction. By rotation of the information processing terminal 1in combination with rotation of the swivel cradle 26, receipts on thetable may be automatically imaged without individual operations (such aspressing a shutter button). Provided imaging is possible, the swivelcradle 26 is not necessarily required. The imaged receipts and the likemay be subjected to OCR, and text data may be recognized and entered.The user needs to operate the information processing terminal 1 and theswivel cradle 26 very little, and may concentrate on placing thereceipts and the like. Particularly on a flat surface such as a table,it is easy to array receipts and the like.

When a product is to be listed in an auction app, a flea market app orthe like, photographs must be taken from various angles for purchaserswishing to know about the condition of the product, which is aninconvenience in selling.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 26 , a pedestalattachment may be fixed to the swivel cradle 26, a product to be imagedplaced on the swivel cradle 26, and the information processing terminal1 fixed with the stand 14. Then, using the camera 21 of the informationprocessing terminal 1 while controlling rotation of the swivel cradle 26from the information processing terminal 1, the product may be imaged360° around.

When clothing is to be listed in an auction or flea market applicationor the like, photographs must be taken from various angles forpurchasers wishing to know about the condition of the item, which is aninconvenience in selling. Because clothing or the like is imaged whilehanging, a different solution from that in FIG. 26 is required.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 27 , a hangerattachment 27 may be fixed to the swivel cradle 26, and the item may behung from a hanger or the like below the swivel cradle 26. Using thecamera 21 of the information processing terminal 1 fixed with the stand14 while controlling rotation of the swivel cradle 26 from theinformation processing terminal 1, the hanging item may be imaged 360°around.

A digital camera, smartphone or the like can take a composite panoramashot by the camera being moved horizontally. However, the camera,smartphone or the like must be moved horizontally smoothly. Neatcomposition is often not possible. If vertical movement as well ashorizontal movement is possible, an extremely large photograph may becomposited. In this case too, neat composition is often not possible.

In contrast, according to an embodiment of the information processingterminal of the present invention, panorama imaging in the verticaldirection and the horizontal direction as illustrated in FIG. 28 ispossible, by the camera 21 of the information processing terminal 1being operated while the plural pivot axes are moved. Thus, a largerphotograph may be taken. An even larger range than when only the pivotaxes of the information processing terminal 1 are used may be imaged byplacing the information processing terminal 1 on the swivel cradle 26and using the pivot axes of the information processing terminal 1 tomove the camera viewpoint in the vertical direction in correspondencewith horizontal rotation of the swivel cradle 26, or the like. Becausethis image capture may be electrically driven, neat composition ispossible. When vertical and horizontal composition are combined, alarger photograph may be taken. When conducting a scan, determining ascanning sequence on a single stroke increases scanning efficienty.

When teaching is being conducted via a video chat on the Internet or thelike, written matter sometimes needs to be shown to a communicationpartner. It is common for a participant to write something and then showthe completed writing to a camera. However, this means that intermediatestages in the process of writing cannot be seen.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 29A, the camera21 of the information processing terminal 1 at a teacher Tc side of avideo chat may be rotated, and thus written matter B on a table may beautomatically imaged without a shutter button being pressed. Keystonecorrection and vertical inversion may be applied, and the written matterB and the face of the teacher Tc may be simultaneously displayed at thedisplay unit 13 of the information processing terminal 1 at a studentside of the video chat, as illustrated in FIG. 29B. In this situation,if a height from the table to the camera is insufficient and not all ofthe paper can be imaged, a stand or the like on which the informationprocessing terminal 1 can be vertically stood may be used. If the swivelcradle 26 is used, a separation in the height direction may be realizedand, using vertical rotation of the camera in correspondence withhorizontal rotation of the swivel cradle 26, the camera rotationfunction of the information processing terminal 1 may image a largerrange than rotation of the information processing terminal 1 alone. Inpractical use, camera operations and rotations may be conducted byremote control; even control over a network is possible. In order toprotect privacy, limitations may be applied to movements of the camera;markers indicating now imaging may be applied. A setting such that, forexample, operations (altering the direction of the camera 21) are notpermitted over a network may be made from equipment (a camera, asmartphone or the like) at the side at which operations are conducted.To make it clear that imaging is being conducted, an LED, display screenor flashlight may be illuminated, a vibration or noise may be produced,an aroma may be emitted, or a captured image may be displayed at thedisplay. Entry of a password may be required for conducting operations.Settings may be made, to allow or disallow settings of whether an LED isilluminated and whether an image is displayed during image capture, ateach of the side at which operations are conducted and the side that isoperated.

At a party, a social function or the like, when a photograph of thegathering is to be taken, someone has to act as photographer to press ashutter button. Although robotic pan-tilters that capture imagesautomatically are available, they do not understand where people arelocated and rotate in accordance with guesswork. Therefore, photographswith really good composition may not be taken.

In contrast, according to an embodiment of the information processingterminal of the present invention as illustrated in FIG. 30 , theinformation processing terminal 1 with the rotatable camera 21 may beplaced on the swivel cradle 26 on a table. Hence, rotation of the swivelcradle 26 may be combined with rotation of the camera 21 of theinformation processing terminal 1, and the camera 21 may be directed invarious directions. Human detection sensors 28 incorporated in theswivel cradle 26 as illustrated in FIG. 31 or in the informationprocessing terminal 1 may identify positions at which people arelocated. Hence, the people may be clearly imaged by rotation of thecamera 21 without rotation by guesswork. Even without the swivel cradle26, when the camera 21 of the information processing terminal 1 can berotated about two or more axes, automatic image capture is possible.

Besides the Human detection sensors 28, for example, plural microphonesmay be mounted. Hence, the positions of people may be identified bycalculations of small differences between the times at which soundsarrive at the microphones, or the like. A subject may be specified andthe rotation mechanism may be used to make the camera automaticallytrack the subject. Image capture does not necessarily all have to beperformed automatically. Images may be captured by voice commands, andimages may be captured by gestures. If people are identified and aperson who does not want to be photographed is present, a setting may bemade to automatically identify and prevent photography of that person.If a person who does not want to be photographed is registered in thecamera beforehand or is manually marked with an “X” during imagecapture, that person may be identified in image processing and imagecapture of that person prevented or the like.

One of the primary purposes of a cradle is to supply electric power forcharging to a smartphone. Accordingly, the cradle cannot receiveelectric power from the smartphone. In order to use functionsincorporated in the cradle, a power supply such as a battery, an ACadapter or the like is necessary. The battery, AC adapter or the likemust be transported with the cradle even for very short times of use.

In contrast, according to an embodiment of the information processingterminal of the present invention, the fact that electric power is notbeing supplied to the swivel cradle 26 may be automatically detected andelectric power may be supplied from the information processing terminal1 to the swivel cradle 26. Thus, functions such as the Human detectionsensors 28 attached to the swivel cradle 26 and the like may beenergized with power from the information processing terminal 1.

Various functions may be incorporated in a cradle such that a smartphonecan be used in a similar manner to a personal computer, such asequipping an HDMI (registered trademark) terminal to enable videooutput, equipping a USB-A terminal and so forth. However, a built-incamera of a smartphone often cannot be used in the same way as abuilt-in camera of a computer due to the position, direction and angleat which the cradle is placed. That is, if there is no function allowinguse of the built-in camera of a smartphone and a built-in camera of acomputer is mounted above or below a display, the built-in camera of thecomputer can be directed at a user’s face if the display is directedthereat. In contrast, when a smartphone is used as if it were a personalcomputer, the user’s face is directed at a connected monitor. Therefore,the user is not necessarily looking at the smartphone placed in thecradle, and an angle at which the built-in camera of the smartphone isdirected is determined by an angle of the cradle. Therefore, theposition and direction of the smartphone cradle must be altered for eachtime of use.

In contrast, according to an embodiment of the information processingterminal of the present invention, when the information processingterminal 1 is placed on the swivel cradle 26 equipped with the Humandetection sensors 28 as illustrated in FIG. 31 , the camera 21automatically rises, and the swivel cradle 26 and the pivot axes of theinformation processing terminal 1 are driven such that an image capturesubject is within the frame of the camera 21. Thus, the image capturesubject may be kept within the frame of the camera. In addition to usingthe the camera 21 as if it were a built-in camera of a computer, thereare various other possibilities such as using images from the camera 21for facial authentication, using the Human detection sensors 28 andturning off the monitor when nobody is present, and so forth.

For example, plural microphones, plural speakers, plural Human detectionsensors, a swivel function, a mobile battery and the like may beincorporated in this swivel cradle 26. Accordingly, the informationprocessing terminal installed at the swivel cradle 26 may be used forvarious purposes such as displaying information, playing music,newsfeeds, weather forecasts, audiobooks, a calendar, sports news,transport information, shopping, connections with electronics, airconditioners and curtains, and so forth.

In the information processing terminal of the present invention, thebody unit 11 and the coupling unit 12 are rotatably connected with oneanother as described above. Rotation operations of the coupling unit 12may be manual and may be electric. When rotation operations of thecoupling unit 12 are electrified, the information processing terminal isstructured, for example, as shown in FIG. 32A and FIG. 32B. FIG. 32A andFIG. 32B depict exterior and interior structures of an embodiment of theinformation processing terminal according to the present invention,which structures are different from the structures in FIG. 2A to FIG. 2Cand the like. FIG. 32A is a rear view of the information processingterminal. FIG. 32B is a sectional view of FIG. 32A. As with FIG. 2A toFIG. 2C, the coupling unit 12 includes the camera base part 12-1 and thecamera orientation part 12-2. The circular camera 21 is disposed at thefront face of the camera orientation part 12-2 (the face at the sideviewed in FIG. 32A) .

The camera base part 12-1 is pivot-supported to enable rotation byelectric driving of the whole of the coupling unit 12 relative to thebody unit 11 about the pivot axis Z1. That is, the camera base part 12-1is structured so as to rotate about the pivot axis Z1 while end faces ofthe exterior column shape of the camera base part 12-1 slide against thebody unit 11. To enable automatic rotation about the pivot axis Z1, astepper motor 51, a biaxial hinge 53, a gear 54 and a gear 55 areprovided inside the coupling unit 12 (see FIG. 32B). That is, the camerabase part 12-1 is automatically rotated about the pivot axis Z1 byrotary driving force of the stepper motor 51 being transmitted to thebiaxial hinge 53.

The camera orientation part 12-2, at which the camera 21 is mounted, issupported by a cantilever spindle to be rotatable relative to the camerabase part 12-1 about the pivot axis Z3 that is arranged substantiallyorthogonally to the pivot axis Z1. To enable automatic rotation aboutthe pivot axis Z3, a stepper motor 52, the biaxial hinge 53, the gear 54and a gear 56 are provided inside the coupling unit 12 (see FIG. 32B).That is, the camera orientation part 12-2 is automatically rotated aboutthe pivot axis Z3 by rotary driving force of the stepper motor 52 beingtransmitted to the biaxial hinge 53 via the gear 54 and the gear 56.Obviously, the biaxial hinge 53 does not necessarily have to be anintegrated biaxial hinge but may be divided into two separate hinges.

Because the stepper motor 51 and the stepper motor 52 are employed,rotation about the pivot axis Z1 and the pivot axis Z3 can beimplemented precisely and quickly by electric driving.

FIG. 33 is a block diagram depicting structures for implementing controlof rotation about the pivot axis Z1 and pivot axis Z3 in a case in whichthe stepper motor 51 and stepper motor 52 in FIG. 32A and FIG. 32B areemployed. In order to implement control of rotations about the pivotaxis Z1 and pivot axis Z3 when the stepper motor 51 and stepper motor 52are employed, a motor driver 61 of the stepper motor 51, a motor driver62 of the stepper motor 52, a rotation angle sensor 63 of the steppermotor 51, a rotation angle sensor 64 of the stepper motor 52, amicrocontroller unit (MCU) 65 and a wireless module 66 are provided.These blocks and the like are illustrated as being outside theinformation processing terminal 1 as appropriate for this description,but may be incorporated inside the information processing terminal 1. Adriver 71 that serves as an interface with the wireless module 66, adriver 72 that serves as an interface with an input driver 82 of theinformation processing terminal 1, a driver 73 that serves as aninterface with the motor driver 61, and a driver 74 that serves as aninterface with the motor driver 62 are provided at the MCU 65. Alsoprovided at the MCU 65 are analog-to-digital converters (ADCs) 75 and 76for converting respective analogue detection signals from the rotationangle sensors 63 and 64 to digital signals.

Commands for rotation of the pivot axis Z1 and pivot axis Z3 (commandsfor movement of the camera 21) are given as both user commands OP1 usinga wireless remote controller 81 and user commands OP2 using an inputdevice 82 of the information processing terminal 1 such as a touch panelor the like. Commands according to the commands OP1 are inputted to thedriver 71 of the MCU 65, and commands according to the commands OP2 areinputted to the driver 72 of the MCU 65.

On the basis of commands according to the commands OP1 and respectivedetection signals from the rotation angle sensors 63 and 64, the MCU 65applies control to the motor drivers 61 and 62 via the respectivedrivers 73 and 74.

Because the two rotation angle sensors 63 and 64 are employed, thefollowing possibilities arise. Firstly, absolute positions may be known(positions are not derived by calculations when movements are performedby a user’s hand). Secondly, failsafes for preventing movement beyondmovement ranges are possible. Thirdly, the direction of the camera 21may be precisely derived from the combination of a G-sensor in the bodyand the rotation angle sensors 63 and 64.

Thus, an information processing terminal in which the present inventionis employed may encompass various embodiments. That is, embodiments ofthe information processing terminal in which the present invention isemployed are not particularly limited provided the informationprocessing terminal is structured as follows. An information processingterminal in which the present invention is employed includes:

-   an image capture unit that captures an image of a subject (for    example, the camera in FIG. 2A to FIG. 2C);-   a body unit (for example, the body unit 11 in FIG. 1A to FIG. 2C),    at a predetermined surface of which (for example, the front surface    11 a in FIG. 1A to FIG. 2C) a display unit (for example, the display    unit 13 in FIG. 1A to FIG. 2C) is disposed, the display unit    displaying a captured image captured by the image capture unit that    includes the subject; and-   a coupling unit (for example, the coupling unit 12 in FIG. 1A to    FIG. 2C) that directly or indirectly couples the image capture unit    relatively rotatably to the body unit via plural rotation axes, the    plural rotation axes including a first rotation axis (for example,    the pivot axis Z1 in FIG. 2A to FIG. 2C) for changing an angle    between an optical axis direction of the image capture unit and a    normal direction of the display unit, and a second rotation axis    (for example, the pivot axis Z3 in FIG. 2A to FIG. 2C) in a    direction different from a direction of the first rotation axis.

The coupling unit may include at least one movable part (for example,the camera base part 12-1 and the camera orientation part 12-2 in FIG.2A to FIG. 2C) smaller in volume than the body unit,

-   the image capture unit may be disposed at a predetermined surface of    one (for example, the camera orientation part 12-2) of the at least    one movable part, and-   an angle between the direction of the first rotation axis and the    direction of the second rotation axis may be substantially 90°.

The body unit and two or more of the movable parts may be coupled by ahinge with at least two axes.

The body unit and movable part may be coupled by a flexible arm.

A position may be provided at which a camera unit stops when the cameraunit is rotating around a rotation axis (for example, the pivot axis Z1)in an attitude perpendicular to a length direction of the body unit, thecamera unit stopping at this position before reaching a position beyondwhich the camera unit is not to rotate.

When the camera unit is rotating around the rotation axis (for example,the pivot axis Z1) in the attitude perpendicular to the length directionof the body unit, the camera unit may rotate through an angle greatlyexceeding 180°.

An acceleration sensor or the like may be equipped at the movable partequipped with a camera (for example, the camera orientation part 12-2),the acceleration sensor identifying directions up, down, left and rightand influencing the orientation of an image at the display unit. Morespecifically, for example, if an acceleration sensor or the like foridentifying directions of the body unit 11 up, down, left and right isequipped at the body unit 11 side, the camera viewpoint image isdisplayed with consideration to the direction of the body unit 11 andthe direction of the camera orientation part 12-2. As an alternativemethod, a method may be employed of calculating an angle between thebody unit 11 and the camera orientation part 12-2 from a single sensoror plural sensors, combining the angle with values from an accelerationsensor and the like mounted at the body unit 11, and displaying thecamera viewpoint image with consideration to the direction of the cameraorientation part 12-2.

A stand may be included that is capable of fixing the body unit atdifferent angles at which the body unit is not placed parallel orperpendicular to a ground surface.

The stand may include a rotation axis (for example, the pivot axis Z2),and the stand may rotate 180° to an attitude that is parallel with thebody unit.

As a variant example, the body unit and camera unit may initially beseparate.

In this case, the separated camera unit may include at least one movablepart, the camera may be rotatable by plural rotation axes including afirst pivot axis for changing the optical axis direction of the cameraand a second pivot axis in a direction different from a direction of thefirst rotation axis, and an angle formed by the direction of the firstrotation axis and the direction of the second rotation axis may besubstantially 90°.

The movable part may be rotated by electric driving.

An acceleration sensor or the like may be equipped at the separatedcamera, the acceleration sensor identifying directions up, down, leftand right and influencing the orientation of an image at the displayunit.

A shutter remote control may be usable as a pen so as to enable easywriting and editing of text after image capture.

EXPLANATION OF REFERENCE NUMERALS

-   1 Information processing terminal-   11 Body unit-   11 a Front surface-   11 b Rear surface-   12 Coupling unit-   12-1 Camera base part-   12-2 Camera orientation part-   13 Display unit-   14 Stand-   21 Camera-   22 Projector-   23 Stand-   24 Markers-   25 Car phone holder-   26 Swivel cradle-   27 Hanger attachment-   28 Human detection sensors-   51 Stepper motor-   52 Stepper motor-   53 Biaxial hinge-   54 Gear-   55 Gear-   61 Motor driver-   62 Motor driver-   63 Rotation angle sensor-   64 Rotation angle sensor-   65 MCU-   66 Wireless module-   71 Driver-   72 Driver-   73 Driver-   74 Driver-   75 ADC-   76 ADC-   81 Wireless remote controller-   82 Input driver-   B Written matter-   CL Clip-   Fn Finger-   K Keyboard-   KB Wall-   MD Window-   Obj Object-   P Pointer-   QR QR code (registered trademark)-   Scr Screen-   Sun The sun-   Tc Teacher-   U User-   Ug 1, Ug 2 Images of the user U-   Z1, Z2, Z3, Z4 Pivot axes

1. An information processing terminal comprising: an image capture unitthat captures an image of a subject; a body unit, at a predeterminedsurface of which a display unit is disposed, the display unit displayinga captured image captured by the image capture unit that includes thesubject; and a coupling unit that directly or indirectly couples theimage capture unit relatively rotatably to the body unit via a pluralityof rotation axes, the plurality of rotation axes including a firstrotation axis for changing an angle between an optical axis direction ofthe image capture unit and a normal direction of the display unit, and asecond rotation axis in a direction different from a direction of thefirst rotation axis.
 2. The information processing terminal according toclaim 1, wherein the coupling unit includes at least one movable partsmaller in volume than the body unit, the image capture unit is disposedat a predetermined surface of one of the at least one movable part, andan angle between the direction of the first rotation axis and thedirection of the second rotation axis is substantially 90°.